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Updated: Jun 10, 2026

Induction of Ocular Surface Inflammation and Collection of Involved Tissues

Induction of Ocular Surface Inflammation and Collection of Involved Tissues

Published on: August 4, 2022

Ophthalmomyiasis: three cases from North India.

S Khurana¹, M Biswal, H S Bhatti

¹Department of Parasitology, PGIMER, Chandigarh 160 012, India.

Indian Journal of Medical Microbiology

|July 21, 2010

Summary

External ophthalmomyiasis, an eye infestation by fly larvae, was identified as Oestrus ovis in two cases and Cochliomyia hominivorax in one. One case, linked to eyelid cancer treatment, resulted in complete eye destruction.

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Published on: November 11, 2025

Area of Science:

Ophthalmology
Medical Entomology
Parasitology

Background:

External ophthalmomyiasis is a rare condition caused by the infestation of the eye by dipteran larvae.
Understanding the causative agents and risk factors is crucial for timely diagnosis and management.

Observation:

This report details three distinct cases of external ophthalmomyiasis.
Larval identification revealed Oestrus ovis in two cases and Cochliomyia hominivorax in one case.
Patient 1: Immunocompetent, Oestrus ovis infestation.
Patient 2: Immunocompetent, Oestrus ovis infestation.
Patient 3: Undergoing treatment for squamous cell carcinoma of the eyelid, Cochliomyia hominivorax infestation.

Findings:

Oestrus ovis and Cochliomyia hominivorax are confirmed etiological agents of external ophthalmomyiasis.
Immunocompetence does not preclude susceptibility to ophthalmomyiasis.
A significant association was observed between immunosuppression due to cancer treatment and a severe destructive outcome.

Implications:

Highlights the importance of considering ophthalmomyiasis in the differential diagnosis of ocular infestations, even in immunocompetent individuals.
Emphasizes the potential for severe ocular morbidity, including complete eye destruction, particularly in immunocompromised patients.
Suggests the need for vigilant monitoring and prompt intervention in patients with risk factors such as malignancy and immunosuppression.